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Challenges and opportunities of electricity consumption optimisation in Slovenian households 48
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Peter Bevk ; Boris Sučić ; Matevž Pušnik
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Abstract: The successful transition to a sustainable energy system based on energy efficiency and renewable energy sources is positioned very high on the political agenda in the European Union (EU). Expected investments in the energy efficiency are recognized as a new market opportunity for all energy suppliers. Based on comparative analysis of differences in electricity distribution load diagrams, innovative and more appropriate dynamic tariff system can be designed. In this paper, influence of the expected investments in the energy efficiency projects on the electricity costs for end consumers in the household sector in Slovenia and the market position of local energy suppliers have been evaluated. Special attention is given to the mechanisms that are suggested to correct market imperfections and to stimulate wider implementation of the energy efficiency projects. The paper also presents the possibilities to optimize electricity consumption by behavioral changes and load shifting in households. Published in: Energy (IYCE), 2013 4th International Youth Conference on Date of Conference: 6-8 June 2013 Date Added to IEEE Xplore: 19 September 2013 ISBN Information: INSPEC Accession Number: 13780061 DOI: 10.1109/IYCE.2013.6604134 Publisher: IEEE Conference Location: Sio¿fok, Hungary
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I. Introduction As electricity is time depending phenomena, it is generated, transmitted and distributed in order to satisfy consumersOdemands and needs in certain moment. Since the beginning of industrialization in Slovenia, electricity demand was rising. According to the new Slovenian National Energy Programme proposal it is expected that comprehensive future development in the field of the energy efficiency and renewable energy sources can result in almost zero rate of the electricity growth on the transmission level. Another crucially important issue that is addressed in the new National Energy Program proposal is how to make entire energy sector more efficient. Even though it is expected that market trends would force energy producers to be more efficient, policy interventions were needed especially for the high efficient cogeneration. Also, there was a need to correct market imperfections and to stimulate the use of new renewable energy sources due to various reasons, having in mind energy efficiency, security of supply and environmental protection. Moreover, efforts have to be done towards further improvement of transmission and distribution networks where smart grid concept will play a vital role in further development. The provision of more transparent and efficient market operation will significantly contribute to the competitiveness, security and longterm stability of electricity supply. Slovenian objective is to achieve an efficient electricity market as a part of integral electricity market in the European Union (EU) and European Energy Community. At the same time it has to assure reliable access to electricity at competitive prices to all Slovenian consumers. According to the results of analysis that has been performed within the National Energy Programme development process, energy retailers have to be aware that in years to come improvements in energy efficiency will result in low growth of the final energy use and moderate growth of the electricity use. Regarding network capacity, the most critical are daily periods of peak hours, where current capacity of the distribution network will be insufficient. The reason is not only in increasing number of consumers but also in change of consumere'characteristics and increasing electricity demand. As it is clear that all above mentioned variables will continue to increase in the future, distribution networks will have to deal with more load than today. Exceeding available network capacity will consequently cause reduction of reliability and stability of the distribution network causing possible breakdown. A traditional procedure of insuring sufficient system capacity is the promotion of energy generation. Due to technology development many effective methods such as distributed generation, load shifting and demand side management (DSM) are successfully replacing former conservative ways to cope with the problem. Read document
Keywords IEEE Keywords Electricity, Welding INSPEC: Controlled Indexing tariffs, electricity supply industry, energy conservation, investment, power consumption, power markets, sustainable development INSPEC: Non-Controlled Indexing dynamic tariff system, electricity consumption optimisation, Slovenian households, sustainable energy system, energy efficiency, renewable energy sources, political agenda, investments, market opportunity, energy suppliers, electricity distribution load diagrams Author Keywords power system stability, energy consumption, energy efficiency, energy management, load management, power demand, power grids, power quality, power system dynamics, power system reliability
Authors
Peter Bevk Jozef Stefan Institute - Center for Energy Efficiency, Slovenia Peter Bevk was born in Pula, Croatia, on April 1, 1983. He is a researcher at Jozef Stefan Institute ÐCenter for Energy Efficiency, Slovenia, and holds a Bachelor of Science degree in Electrical engineering from the University of Ljubljana. His research interest is particularly related to the energy management, implementation of integrated energy concepts in residential sector and identifying possibilities of smart metering for increasing energy efficiency in households. He actively participated in projects related to energy consumption prediction in household sector, process and load management, monitoring systems and energy labeling.
Boris Sučić Jozef Stefan Institute - Center for Energy Efficiency, Slovenia Boris Sucic is researcher at Jozef Stefan Institute - Center for Energy Efficiency, Slovenia. He holds a Master of Science degree in Electrical Engineering from the University of Zagreb. His research interest is particularly related to the role of sustainable planning in the energy sector, energy management in industry and public sector, energy efficiency in buildings, demand side management, long term energy and emission reduction planning He was actively involved in various projects for public and private sector in the field of the power system optimization, distributed electricity generation and environmental protection. Also, he participated in preparation of governmental programmes in the field of energy efficiency (National Energy Efficiency Action Plan), renewable energy sources (National Renewable Energy Sources Action Plan), energy planning (National Energy Programme) and managed several activities for industry and public sector (energy audits, energy measurements, consulting, training etc.). Beside the Jozef Stefan Institute his employment experience included the Enconet International Ltd., Zagreb and University of Zagreb Faculty of Electrical Engineering and Computing.
Matevž Pušnik Jozef Stefan Institute - Centre for Energy Efficiency, Slovenia Matevž PuÅ¡nik was born in Ljubljana, Slovenia, on January 23, 1982. He is a researcher at Jozef Stefan Institute - Centre for Energy Efficiency, Slovenia and holds a Master of Science degree in Electrical engineering from the University of Ljubljana. He is also a PhD student on the Faculty of Electrical Engineering at the same University. His research interest is particularly related to the energy consumption and supply modeling, integrated resource planning, energy indicators and climate and energy policy decision support methods. He actively participated in research projects related with the evaluation of GHG effects, emissions reduction measures, implementation of energy policies and preparation of long term energy projections.
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